Jingo is the trade name and generic name of Sildenafil, which needs to be taken as needed, up to once a day, and is recommended to be taken every other day, and should not be taken more than 15 times a month. Sildenafil tablets can increase blood flow to the male penis and improve its erectile function, and are mainly used clinically to treat erectile dysfunction. This product should be taken as needed before sex, not more than once a day, and it is recommended to be used every other day, should not be used continuously every day, and should not be taken more than 15 times a month. Side effects that often occur after the use of this product include headache, flushing, visual abnormalities, myalgia, back pain, nasal congestion, dyspepsia, etc. It is contraindicated in patients with a known allergy to this product as well as in patients taking nitrate drugs. Please take the drug under the guidance of a physician, and should not be used blindly.